linux-kernel - Re: [PATCH v4 2/2] selftests/sgx: Migrate to kselftest harness

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Date:   Tue, 11 May 2021 11:42:49 -0700
From:   Reinette Chatre <reinette.chatre@...el.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc:     linux-sgx@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] selftests/sgx: Migrate to kselftest harness

Hi Jarkko,

On 5/7/2021 8:56 PM, Jarkko Sakkinen wrote:
> Migrate to kselftest harness. Use a fixture test with enclave initialized
> and de-initialized for each of the existing three tests, in other words:
> 
> 1. One FIXTURE() for managing the enclave life-cycle.
> 2. Three TEST_F()'s, one for each test case.

These changes make it easier to add tests and I think it is a valuable 
addition.

> 
> This gives a leaps better reporting than before. Here's an example
> transcript:
> 
> TAP version 13
> 1..3
> 0x0000000000000000 0x0000000000002000 0x03
> 0x0000000000002000 0x0000000000001000 0x05
> 0x0000000000003000 0x0000000000003000 0x03
> ok 1 enclave.unclobbered_vdso
> 0x0000000000000000 0x0000000000002000 0x03
> 0x0000000000002000 0x0000000000001000 0x05
> 0x0000000000003000 0x0000000000003000 0x03
> ok 2 enclave.clobbered_vdso
> 0x0000000000000000 0x0000000000002000 0x03
> 0x0000000000002000 0x0000000000001000 0x05
> 0x0000000000003000 0x0000000000003000 0x03
> ok 3 enclave.clobbered_vdso_and_user_function
> 

The output claims to conform to TAP13 but it does not seem as though all 
of the output conforms to TAP13. I assume such output would confuse 
automated systems.

Reinette